I am conducting a preconference workshop, with my esteemed colleagues Christian Crumlish and Lucas Pettinati, on building a pattern library and using patterns and code libraries to build sites. The official title: Design patterns: from interaction to design to build
The full workshop description is posted on the conference website. I highly recommend you check it out and sign up!
It should be a fun and informational day filled with history, the lessons we have learned and advice from our experiences at Yahoo! and case studies from development and design organizations who have used our libraries to help build their sites and their own libraries for reuse.